Lift.



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JAoo nails, or DABMSIADT, GERMANY.

LIFT.

To all whom it may concern Be it ltnown that I, Jacon Bus, manufacturer, a' subject of the German .l hnperor, and resident of Darmstadt, Grand Duchy of iHesse, Germany, with the post'oflicc address Riegerplatz ill, have invented new andusciul In'iprovements in Lifts, of which the :t'ollowing isa specification.

The present invention relates to elevators or lifts, and has for its object to provide a novel form of elevator adapted to carry freight or passengers to and from, ditlerent floors ota building or structure, and also to convey the persons or goods to be trans ported to and from diitl'erent points on the several floors. i

To this end, the invention comprises an outer cage or elevator car mounted to operatetini a vertical. shaft, within which is mounted. an inner cage or car capable of a limited vertical movement within the outer car, and normally supported in said; outer car .by .n'ieans of the hoisting cable which servcs to raise and lower both cars, said inner cage being also adapted to be lowered upon a tiltable platform or bottom carried by the outer car, from which the inner car may be moved from the outer car in a horizontaldirectionand on to the floor adj accnt which the elevator has been stopped, upon which floor the said inner carmay be guided or directed to any desired location, either to discharge or take on goods or passengers, after which the said inner-car is drawn back by the hoisting cable along the floor, thence into the outer car, and the two cars raised or lowered in the vertical elevator shaft. Incidentally, the invention also contenn plates the provision of electrical stop devices, which serve to arrest and support the outer car atany one of the sevcral floors, as will be hereinafter explained.

The invention is illustrated in the accom panying drawings, in which Figure 1 is a diagrammatic view illustratingso much of the installation as is necesinvention; and Fig. 2 is a detail view, partly sary for a complete understanding oi. the

in vertical section, showing the rotatable in clined floor of the outer cage.

Referring to the drawings, a indicates the hoisting drum, which may be of any ordinary type which operates the cable or rope Y), which. latterpasses over an overhead pul ley or sheave z and is connected to the inner H Specification of Lettersi atent. I Putent dzAij 1851914; Application filed March 12, 1912. Serial No. 683,260. I t

cage 0, in. any appropriate inannerw Said inner cancels mounted for limited vertical movement in an outer cage (1, which latter is preferably guided at its corners in the ordinary vertical. well or shaft, so as to leave all four sides of theshaftfat the lioor. levels,

tree and unobstructed. ylhe outer cage ('Z is provided with' a rotatable inclined bottom a, which may be convenientlyconstructed in the manner illustrated in liig. 2, to permit said bottom to be turned, so as to present the inclinethereof toward any of the sides of the elevator well at the various floors At each floor level, there are mounted loll opposite sides of the elevator well, pivoted stop lugs i, which are nori'nally retracted by counter-weights /r to inoperative position to permit the elevator to move in either direc tion, as indicatedin the lower part of Fig. 1. Thestops iare movedinto operative position below the cage (Z to support thelattcv, under proper :conditimis, at any desired floor,by means of eleetro magnets 5 one for each set of stops, the pivoted armature of each magnet being connected to l lltl llOll'lk spending stops by means of hnksJi, which serve to rock the stops on their pivots, so that the forward ends project into the elevator well under. the bottom of cage (1, when the corresponding magnet is energized. As soon asthe. cage isliftedto disengage the stops i, the latter are rocked toinoperative position by the counter-weights fi Obviously, the magnets may be, controlled by any,appropriate means, such, for example,

as by ordinary push buttons,to arrest. and support the elevator cage (Z, at any desired floor levcl. i

The operation of the apparatus as thus described, is as follows: \Vhcn the elevator,

consistingof the two cages c and (I, is raised by the hoisting cable to any desired floor, the upward movement of the outer cage is continued for. a short distance above the desired floor level and during the ascending movement, all of the magnets being denergized, the various stops iare in normally retractedposition and do not interfere with the movement of the outer cage. After the latter has been raised a slightdistance above the desired floor level, the magnet g, which controls the stops at that imrticulzir floor. level, is energized and moves the sto ps,.so

that the inner ends thereof project intothe well and into position shown in the ,upper portion pf Fig}.

. The inding drum is then reversed, and the outer cage permitted.

to descend until the bottom, thereof rests upon the inner ends ofthe' stops t, which latter support the outer cage at the desired floor level. After the outer cage is brought to rest upon the stops, theenergi i/ in'g current through the corresponding magnet g may he interrupted to prevent Waste. The

continued unwinding of the cable 7) from the floor or upon appropriate tracks provided therefor, to any desired portion of the floor, Where it is either loaded or unloaded, and isthen drawn hack into the outercau e along the floor ortrucks, when the hoisting (H lde is taken up by the drum (a. After the inner cage (1 passes into the outer cage (Z, the continued. lifting movement of the cable causes the innericage to rise Within the outercage until both cages are lifted. When the outer cage is liftedsufficiently to disengage the stops the latter are automatically retracted by their counter-Weights 7c, and both ages may he ra d or lowered, as desired. As hereinafter indicated,the inclined bottom 6 is adapted to be rotated so as to permit the inner cage to pass from the outer cage on to the desired floor, in anydirec tion, and when the floors are provided with tracks, to receive and guide the inner'cage, in its movement over the floor, said tracks are preferably inclined to facilitate the au tomatic moven'ient of the cage outward over thefloor, and said tracks may, if desired, be

Copies of this patent may be obtained for provided with stops to arrest the movement .of .theinner car Wherever desire-d.

lit will be understood, of course, that the hoisting inechanismot the elevator may be of any appropriate form, and may be con trolled by any of the ordinary apparatus previded tor that purpose, mounted either on the elevator car proper, or at the various floor levels or in the alternative at'some' central control station.

i lhat 1 claim is i 1. In a hit, an inner cage, a hoisting rope connected with the inner cage passing over a guide sheave at the top of the Well and connected Witl'r a hoisting drum," and van outer cage provided With an inclined bottom to permit the inner cage to be moved out oi the outer cage and ontothe adjacent floor.

2., In. a lift, an inner cage, a hoisting rope connected with the inner cage passing over a guide sheave at the. top of the Well and ccnnecied with a hoisting drum, an outer cage having an inclined bottom carrying the inner cage and an electromagnetically controlled su imorting device for the outer cage. In an elevator mechanism, an inner cage, a hoisting cable engaging an overhead guide sheave connect-ed therewith, an outer cage in which said inner cage is supported for independent movement, and means for supporting the outer cage at. a desired floor to permit the inner cage tobe moved out 0i. said outer cage and onto said floor.

In testimony, that I-claim the foregoing as my invention, I have signed myname in presence of tvvo Witnesses, this first day of March 1912. r I JACOB BAAS.

l i itnesses: c 1 I EVA SATTLER, EMIL Vosr.

five cents each, by addressing the Commissioner of Patents,

Washington, 3). 6. 

